Communicating mathematical thinking and reasoning is an essential part of developing understanding. The purpose of these discussions is to give students opportunities to “share ideas and clarify understandings, construct convincing arguments regarding why and how things work, develop a language for expressing mathematical ideas, and learn to see things from other perspectives” (Principles to Action, 2014).
I challenge you to try to explain and defend your ideas in a clear meaningful way. I also ask that you to take a look at your peers ideas and to respond to or critique their ideas using examples to support or counter examples to refute arguments.
Step 1: Read the required reading in the textbook for chapter 4 (see assignment sheet for unit 2).
Step 2: Respond to the above chapter by hitting reply (below) and posting the following information:
a) Explain two key concepts you learned from reading this chapter. Please use at least 3 complete sentences to describe each key point.
b) List two questions that you have after reading the chapter. Please use at least 3 complete sentences to describe each question.
**If you do not have any questions then you may post a response to two or more of the following questions:
Question 1 – Look at the problem below. It has been solved two different ways.
Which method is a better way to solve this problem? Why?
Is the other answer right or wrong? Explain.
Problem: Convert 25 meters to centimeters.
Method 1
25m×100=2500cm
Method 2
25m×3.3ft1m×30cm1ft=2475cm
Question 2 – When adding measurements, how should you determine the precision of the answer? Explain in your own words and give an example.
Question 3 – What is the metric conversion line and how is it used?
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